Use a direct include of strings headers in crypto/, dbus/, device/.

device/bluetooth/bluetooth_device_mac.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "device/bluetooth/bluetooth_device_mac.h"
 
 #include <IOBluetooth/Bluetooth.h>
 #import <IOBluetooth/objc/IOBluetoothDevice.h>
 #import <IOBluetooth/objc/IOBluetoothSDPServiceRecord.h>
 #import <IOBluetooth/objc/IOBluetoothSDPUUID.h>
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/hash.h"
-#include "base/string_number_conversions.h"
-#include "base/stringprintf.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "device/bluetooth/bluetooth_out_of_band_pairing_data.h"
 #include "device/bluetooth/bluetooth_profile_mac.h"
 #include "device/bluetooth/bluetooth_service_record_mac.h"
 #include "device/bluetooth/bluetooth_socket_mac.h"
 
 // Replicate specific 10.7 SDK declarations for building with prior SDKs.
 #if !defined(MAC_OS_X_VERSION_10_7) || \
     MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
 
@@ skipping 198 matching lines @@
   NOTIMPLEMENTED();
 }
 
 void BluetoothDeviceMac::ClearOutOfBandPairingData(
     const base::Closure& callback,
     const ErrorCallback& error_callback) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace device